2 influenza A + 1 influenza B. Contains four times the amount of antigen (prompts the body to make antibodies) contained in regular flu shots, to create a stronger immune response.

Vaccine Types

Standard shot – age 6 months and above

High-Dose shot – designed specifically for age 65 and above

Flu Season

In the US, flu activity peaks in January and February, but can begin as early as October and continue as late as May. Vaccines take 2 weeks to build immunity in the body.

Safety

Flu vaccines are safe. Vaccine viruses used are inactivated (“killed”) or weakened and CANNOT cause influenza.

Effectiveness

60% less likely to need treatment for flu after get vaccination. Also reduces other illnesses, antibiotic use, time off work, hospitalizations, and deaths.

Side Effects

Soreness, redness, or swelling where the shot was given; fever (low grade); aches

Soreness, redness, or swelling where the shot was given; fever (low grade); aches; headache; potential for increased local side effects

NOTE: Public Health experts have not recommended one type of flu vaccine more highly than another for people 65 and older. They advise getting any type of flu vaccination as the first and most important step in protecting against the flu.